STUTTGART, Germany -- Top-seeded Janko Tipsarevic of Serbia had to save four match points before overcoming Bjorn Phau of Germany 6-7 (6), 7-6 (2), 6-4 on Friday to reach the semifinals of the Mercedes Cup.
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Tipsarevic failed to convert 10 break points in the seventh game, and then let four set points slip away in the tiebreaker as Phau closed out the set with six straight points.
Phau broke for 6-5 in the second but could not convert four match points. Tipsarevic then cruised through the tiebreaker.
Tipsarevic saved four break points before serving out the match.
Copyright 2012 by The Associated Press
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